
Research Article
Certificateless Aggregate Signature Without Trapdoor for Cloud Storage
@INPROCEEDINGS{10.1007/978-3-031-64948-6_18, author={Yingjie Dong and Yongjian Liao and Zhishuo Zhang and Wen Huang}, title={Certificateless Aggregate Signature Without Trapdoor for Cloud Storage}, proceedings={Security and Privacy in Communication Networks. 19th EAI International Conference, SecureComm 2023, Hong Kong, China, October 19-21, 2023, Proceedings, Part I}, proceedings_a={SECURECOMM}, year={2024}, month={10}, keywords={Certificateless Aggregate Signature Lattice}, doi={10.1007/978-3-031-64948-6_18} }
- Yingjie Dong
Yongjian Liao
Zhishuo Zhang
Wen Huang
Year: 2024
Certificateless Aggregate Signature Without Trapdoor for Cloud Storage
SECURECOMM
Springer
DOI: 10.1007/978-3-031-64948-6_18
Abstract
In this paper, we propose a lattice-based certificateless signature scheme and certificateless aggregate signature which can be used to verify a large number of signatures simultaneously efficiently. To improve the security of our scheme, we have implemented our signature algorithm without trusted third parties. The security of our proposed signature algorithm can be reduced to the SIS problem under the random oracle model. Moreover, our construction only needs matrix multiplication and rejection sampling operation, so the algorithm is naturally simple and efficient. Besides, we’ve done some experiments using the NTL library, indicating our scheme has less time overhead and storage overhead than other schemes. To our best knowledge, we propose the first certificateless aggregate signature without trapdoors.